Projects
This page shows the 208 projects that have been approved to run in OpenSAFELY.
Projects numbered 1-155 were approved during the COVID-19 pandemic under legal powers issued by the Secretary of State: Regulation 3(4) of the Health Service (Control of Patient Information) Regulations 2002 – COPI Regulations. Under this emergency legal power, the Type 1 Opt-out [archived here] (which a patient can register with their GP surgery to prevent their GP data from being shared outside the GP practice for planning or research purposes) was not required to be upheld for research and planning purposes in the pandemic. Therefore, for projects 1-155 a patient who had registered a Type 1 Opt-out could have had their GP health information used (anonymously) in these projects.
In June 2023, the legal basis for OpenSAFELY’s operation changed [archived here] from the emergency COPI Regulations to the COVID-19 Public Health Directions 2020. Under this Direction, the Type 1 Opt-out will be upheld for all new projects (after 155).
In June 2025, the government issued new Directions that make it possible to conduct research on any healthcare topic. As such, projects after number 205 are not confined to COVID-19 studies and cover a wide range of health topics.
OpenSAFELY Projects
Search for a project →-
POS-2026-3005: Monitoring Prescribing Of Obesity Pharmacotherapy In Primary Care In England
Research project run by NHS England.
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POS-2026-3004: Harmonised assessment of risk groups for vaccine prioritisation
Research project run by London School of Hygiene & Tropical Medicine.
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POS-2026-3003: The effect of herpes zoster vaccines on incident dementia in England
Research project run by University of Bristol.
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POS-2026-3002: Improving disease burden estimation in England
Research project run by University of Oxford.
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POS-2026-3001: Evaluating the implementation of NICE gout guidance within the NHS
Research project run by King's College London.
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Project #209: SARS COVID-19 vaccination and risk of major adverse cardiac events after hip fracture
Research project run by University of Oxford.
COVID-19 -
Project #208: Diagnostics Demand Optimisation
Service evaluation project run by NHS England.
COVID-19 -
Project #207: Recording of additional prescription information in OpenSAFELY
Short data report project run by University of Oxford.
COVID-19 -
Project #206: Cardiovascular outcomes post-COVID-19 and the potential for COVID-19 vaccines to mitigate them
Research project run by London School of Hygiene and Tropical Medicine.
COVID-19 -
Project #205: Short data report: Recording of medicines prescribed outside primary care in GP EHR data
Short data report project run by University of Oxford.
COVID-19 -
Project #204: The effect of the Covid-19 pandemic on A&E attendances for Cardiovascular Diseases
Research project run by British Heart Foundation.
COVID-19 -
Project #203: Migration-related coding in English primary care electronic health records
Short data report project run by Bennett Institute for Applied Data Science, University of Oxford.
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Project #202: A longitudinal evaluation of pharmacy consultation services including the Pharmacy First programme on healthcare utilisation over the period 2017 – 2026
Research project run by University of Nottingham.
COVID-19 -
Project #201: Impact of COVID-19 pandemic on life expectancy among people with HIV
Research project run by University of Bristol.
COVID-19 -
Project #200: Burden of Neurodegenerative Disease 2020-2024
Research project run by University of Bristol.
COVID-19 -
Project #199: Effects of the COVID-19 pandemic on antibiotic prescribing
Research project run by Department of Health and Social Care.
COVID-19 -
Project #198: Identify risk factors associated with disparities for resistant bloodstream infections, before, during and after the global COVID-19 pandemic; a national case-control and cohort study
Research project run by Centre for Health Informatics, University of Manchester;HCAI, Fungal, AMR, AMU & Sepsis Division UK Health Security Agency.
COVID-19 -
Project #197: Neurosurgery Referrals during the COVID-19 Pandemic: A retrospective cohort study using OpenSAFELY
Research project run by Department of Continuing Education, University of Oxford, Department of Primary Health Care, University of Oxford, Bennett Institute for Applied Data Science, University of Oxford.
COVID-19 -
Project #196: OpenPREGnosis: Developing an Open Algorithm to Identify Pregnancy Episodes and Outcomes in OpenSAFELY
Research project run by University of Manchester.
COVID-19 -
Project #195: Effect of statin use on the incidence of severe COVID-19
Research project run by University of Bristol and University of Oxford.
COVID-19 -
Project #194: Short data report: Recording of personalised follow-up pathways in OpenSAFELY
Short data report project run by University of Oxford.
COVID-19 -
Project #193: Incidence and management of inflammatory rheumatic diseases before, during and after the COVID-19 pandemic
Service evaluation project run by King's College London.
COVID-19 -
Project #192: Exercise Pegasus: Red Team validation
Service evaluation project run by UK Health Security Agency.
COVID-19 -
Project #191: Neurosurgery Referrals during the COVID-19 Pandemic: Can we determine how referrals to secondary specialties, such as neurosurgery, changed during the pandemic? An exploratory study.
Short data report project run by Department of Continuing Education, University of Oxford, Department of Primary Health Care, University of Oxford, Bennett Institute for Applied Data Science, University of Oxford.
COVID-19 -
Project #190: OpenSAFELY Feedback
Service evaluation project run by Bennett Institute for Applied Data Science, University of Oxford.
COVID-19 -
Project #189: Impact of Covid-19 pandemic on prevalence, patterns and variations of COPD ‘rescue packs’ prescribing in primary care in England
Research project run by Bennett Institute of Applied Data Science, University of Oxford.
COVID-19 -
Project #188: Assessing the accuracy and completeness of death recording in the OpenSAFELY database compared to ONS death registrations in England
Short data report project run by Bennett Institute, Nuffield Department of Primary Care Health Science, University of Oxford.
COVID-19 -
Project #187: Describing how pathology tests and their associated data are recorded in OpenSAFELY
Short data report project run by Bennett Institute for Applied Data Science, University of Oxford.
COVID-19 -
Project #186: Impact of COVID-19 on polypharmacy and deprescribing patterns in dementia patients
Research project run by University of Bristol.
COVID-19 -
Project #185: Investigating events following COVID-19
Research project run by University of Bristol.
COVID-19